Ball-bearing for gravity-carriers.



H. J. BUCK.

BALL BEARING run GRAVITY CARRIERS.

APPLICATIUN FILED FEB. 3, I914.

Patented Sept. 4, 1917.

70/11/1110 7 V E l J W w {M e m m /m y #7 4 a 5 4 W STATES PATENTOFFICE.

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BALL-BEARING FOB GRAVITY-CARRIERS.

Specification of Letters Patent.

i Patented Sept. 4, 191 '1'.

Application filed February 8, 1914. Serial No. 816,143.

To all whom it may concem:

Be it known that I HERMAN J. BUCK, a citizen of the United states,resident of Ellwood City, count of Lawrence, and State of Pennsylvania,ave invented certain new and useful Improvements in Ball-Bearings forGravity-Carriers, of which the following is a specification.

The ob ect of my invention is to provide a gravity carrier havinganti-friction bearings for the rolls or conveyer members which willallow the convenient removal of the rolls from their supports in case ofwear or breakage of any portion of a bearing or a roll. 7

A further object is to provide a conveyer having bearings for its rollsthat are of simple, inexpensive construction but strong and durable.

A further object is to provide a ball hearing which can be easily andquickly removed from the conveyer without. removing the balls from thecage or ball race.

Other objects of the invention will-appear from the following detaileddescription.

The invention consists generally in various constructions andcombinations all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings forming part of this-specification,

Figure 1 is a plan view of a gravity carrier embodying my invention Fig.2 is a side elevation of the same, a

Fig. 3 is a transverse sectional view of the carrier, showing one of thecarrier rollsin lon 'tudinal section, the middle portion thereo beingbroken away.

Fig. 4 is a transverse sectional. view of one of the carrier rolls.

Fig. 5 is a detail view of ea or ball race. n the drawing,'2 representsthe side rails of the carrier having slots 3 to receive rods or axes 4of the anti-friction wheels or rolls. These rods are preferably securedin the the ball bearing 'rails by the locking bars 5, through whichbolts pass to secure them to the rails 2. 7 represents a conveyor orcarrier roll, preferably made of steel tubing, open at 6 ch end andprovided with a head 8 that ts snugly into the end of the roll andlocked therein by a boss 9 pressed or punched out of the roll into thesurfaceof the head. Any other suitable means may be employed forsecuring fihe head and the conveyer roll together. 0 head 8 is providedwith an inwardly projecting web 11 terminating in a flange 12 that isparallel substantially with the axis of the roll 8 and is provided atsuitable intervals with inwardly projecting lugs 13. A sleeve 14 isloosely mounted on eac end of the rod 4 and provided with an annulargroove 15 formin a race for the bearing balls 16. A ring 17 1s fitted toslide within the flange l2 and its outer end is in wardly turned to formthe outer wall 18 of the bearing ball cage. A similar ring 19 fitswithin the ring 17 and has an inwardly turned wall 20 forming the innerwall of the bearing ball cage. The ring 17 has slots 21 therein whichreceive the lugs 13 on the flange 12. Thereby the conveyer roll, thecage formed of the rings 17 and 19 and the sleeve 14 are locked toether.

The sleeves 14.- have ong bearing surfaces on the rod 4, and when thecarrier or conveyer is set up, the longitudinal movement I of thesleeves will be limited by the rails 2. Whenever desired the ends of therods may be released and raised ,until the sleeve at either end or thesleeves at both ends can be removed therefrom, the rings 17 and 19.slidin out of engagement with the flange 12 and t e lugs 18,. andallowing the complete separation of the ball bearings from'the rod androll. The rings 17 and 19 are locked together by any suitable means,preferably by 'lgriarter speed upon the sleeve owing to the bearingbetween said sleeve and said roll. I

This arrangement constantly changes the part of the sleeve that is upmost and which receives the pressure of e loadfrom the balls. Thebearing surface of the sleeve is therefore constantly changed, thusmsur;

'ctional engagement with each other, the

ing long life for said sleeve. If preferred, however, means may beprovided for locking the sleeve a ainst rotar movement.

While I ave shown alls as the anti-friction member of the bearingandgenerally prefer to use them, it is obvious that suitable rolls may besubstituted for, the balls, particularly for heavy work, withoutdeparting from my invention. I

The details of the construction may be modified in many particularswithout departing from my invention.

I claim as my invention:

1. In a gravity carrier, the combination, with a rod, of a roll havingan anti-friction bearing on said rod, said bearin comprising a sleeveloosel mounted on sai rod, a cage carried by sai sleeve and havin slotsto receive lugs provided on said rol for simultaneous rotary movementwith said roll, said cage being capable of movement len hwise of saidroll to engage it with said u or disenga c it therefrom, and bearin bals interpo between said cage and sai sleeve.

2. In a gravity carrier, the combination with a rod, of a roll having ananti-friction bearing on said rod, said bearing comprisin a sleeveloosely mounted on said rod an capable of rotary and longitudinalmovement thereon, a cage carried b said sleeve, means connecting saidcage an said roll for simultaneous rotation, said cage being capable ofmovement lon 'tudinal y of said roll to engage it therewit or disengageit therefrom, and bearin -ba1ls interposed between said cage and saisleeve.

3. In a gravity carrier, the combination, with a rod, of a tubular rollprovided with open ends and havin an anti-friction bearing on said rod,sai bear-in comprising a sleeve loosely mounted on sai rod and capableof rotary and longitudinal movement thereon, a 0 carried by said sleeve,mea'ns connecting saldcage and said roll for simultaneous rotation, saidcage bein ca able of movement lon 'tudinally of said ro l t enga e ittherewith or disenga e it there rom, an bearing-balls interpose betweensaid cage and said sleeve.

4. In a gravity carrier, the combination, with a rod, of a roll havingan anti-friction bearing on said rod, said bearing comprising a sleeveloosely mounted on said rod and capable of rotar and longitudinalmovement thereon an provided upon its outer periphery with an annulargroove, a cage earned by said sleeve, means connecting said cage andsaid roll for simultaneous rotation, said cage being capable of movementlongitudinally of said roll to engage it therewith or disengage ittherefrom, and bearing-balls interposed between said cage and saidsleeve and extendin into said groove and preventing longitudinalmovement of said cage upon said sleeve.

5. In a gravity carrier, the combination with a rod, of a roll havin ateach end an anti-friction bearing on sai rod, each bearing comprising asleeve loosely mounted on said rod, and capable of rotary andlongitudinal movement thereon a cage carried y each sleeve, meansconnecting each cage with said roll for simultaneous rotation, each cagebeing capable of movement longitudinally of said roll to engage ittherewith or disengage it therefrom, and bearing-balls interposedbetween each cage and the sleeve by which it is carried.

In witness whereof, I have hereunto set my hand this 20th dag ofJanuary, 1914.

H RMAN J. BUCK.

Witnesses:

FRANK E. Moore,

Jos. W. Hourmmr.

